Calibration—475
g. Repeat the bandwidth check procedure, step 12-c
through 12-e.
CH 2 input via a GR-to-BNC adapter, 42-inch 50 £2 BNC
cable, X I 0 BNC attenuator, and a 50 £2 BNC termination.
h. Disconnect the test.se.tuiL
13. Check Cascaded Bandwidth
d. Adjust the Medium-Frequency signal generator for a
five-division display of a 50 kilohertz signal.
a. Set both AC-GND-DC switches to DC, the A T IM E /
D IV switch to 1 ms, and the V E R T MODE switch to CH 1.
e. W ithout changing the output amplitude of the signal
generator, increase the output frequency until the display is
reduced to 3.5 divisions.
b. Connect the CH 2 V E R T S IG N A L O U T (on the rear
panel) to the CH 1 input via a 42-inch 50 £2 BNC cable and
a 50 £2 BNC termination.
f . C H E C K —O u tp u t
frequency
of
the
Medium-
Frequency signal generator must be at least 50 megahertz.
c. Connect the output of the Medium-Frequency
Constant-Amplitude Signal Generator (Type 191) to the
g. Disconnect the test setup.
TR IG G ER SYSTEM CHECK
Equipment Required
1. Standard Amplitude Calibrator (067-0502-01).
6.
42-inch
50
f t BNC Cable.
2. M e d iu m -F re q u e n c y
Constant-Am plitude
Signal
Generator (Type 191).
7.
18-inch
50
f t BNC Cable.
A
X# *fl A A It 1
A A . .
8. X I 0 BNC Attenuator.
3. 50 £2 Signal Pickoff Unit (Type CT-3).
9. X 2 BNC Attenuator.
4. 50 £2 5 nanosecond GR Cable.
10. 50 £2 BNC Termination (two).
5. GR-to-BNC female Adapter.
11.
Dual Input Coupler (two).
Control Settings
Preset instrument controls to the settings given under
Preliminary Control Settings except as follows:
18-inch 50 £2 BNC cable, a 50 £2 BNC termination, and a
dual input coupler.
both T IM E /D IV
0.05
fJ is
c. Adjust the Medium-Frequency signal generator to
maintain a 0.3-division display of a 50 kilohertz signal.
14. Check A Triggering
d. Rotate the A SLOPE switch between
+
and —.
a. Connect the output of the Medium-Frequency
Constant-Amplitude Signal Generator (Type 191) to the A
External Trigger input via a 50 £2 5 ns GR cable, 50 £2
Signal Pickoff Unit (Type CT-3) thru output, GR-to-BNC
adapter, X I 0 BNC attenuator, X 2 BNC attenuator, 50 £2
BNC termination, and a dual input coupler.
e. CHECK —A stable display can be obtained on both
slopes of the displayed waveform in all positions of the A
COUPLING switch by adjusting the A LEV E L control.
b. Connect the 10% BNC output connector of the 50 £2
Signal Pickoff Unit to the CH 1 and CH 2 inputs via an
f. Set the A SOURCE switch to CH 1.
g. C HECK —Repeat steps 14-d and 14-e.
®
5-9
g. C HECK —Repeat steps 14-d and 14-e.
Summary of Contents for 475
Page 6: ...475 475 Oscilloscope ...
Page 20: ......
Page 46: ......
Page 151: ...A B C D E F G Fig 7 4 P 0 A4 Vertical Mode Switch circuit board ...
Page 152: ...n m m m 1 t siumm c ii im ...
Page 154: ...Diagrams 475 A B C D E F G ...
Page 155: ...GRID LOCATOR Fig 7 8 P O A3 Vertical Preamp circuit board ...
Page 157: ...Diagrams 475 ...
Page 158: ...GRID LOCATOR 2 3 4 5 6 7 8 9 1 10 11 1 12 Fig 7 10 P 0 A3 Vertical Preamp circuit board ...
Page 160: ...Diagrams 475 GRID LOCATOR Fig 7 11 A5 Vertical Output circuit board ...
Page 163: ...Diagrams 475 GRID LOCATOR Fig 7 12 P O A8 Trigger Generator And Sweep Logic circuit board ...
Page 167: ... 415 OSCILLOSCOPE B T R IG G E R G E N E R A T O R g B TR IG G E R GEN ER A TO R ...
Page 168: ...Diagrams 475 GRID LOCATOR ...
Page 172: ...SWEEP G E N ER A TO R S ...
Page 175: ...TIM IN G HORIZONTAL DISPLAY SWITCHING ...
Page 177: ...A 011 HORIZONTAL AMPLIFIER 8 l j k J Ll J Ol Z o N C O X U 1 C L O o v O o _J V v P O in r ...
Page 179: ... 476 OSCILLOSCOPE ...
Page 180: ...POWER SUPPLY ...
Page 182: ...CRT CIRCUIT ...
Page 185: ...C A L IB R A T O R A N D F A N C I R C U I T 4 C A LIB R A TO R FAN MOTOR C IR C U IT ...
Page 189: ......
Page 190: ...4 T 475 OSCILLOSCOPE FIG 1 FRO NT PANEL ...
Page 191: ...475 OSCILLOSCOPE FIG 2 MAIN FRAME ...
Page 199: ......
Page 200: ...FIG 3 RIGHT SIDE l 475 OSCILLOSCOPE ...
Page 201: ...V S X O t l B O T T OVJ 8 8 ...
Page 209: ......
Page 210: ...5 ...
Page 211: ...4 4 75 O S C ILLO S C O P E FIG 5 CAB IN ET ...
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Page 241: ... 1 I R I II9A po S IT I o n f i n e I R l 130 PAGE 4 OF 5 R 1234 Ml 9 91 9 473 ...